Labels:book | bulletin board | chair | concert grand | dog | earth | fence | paper | person | plaything | reckoner | sky | vegetarianism OCR: FACTS BOX NAME: GRAND PIANO FAMILY Keyboards KEYBOARDS PITCH RANGE: Seven-and-a-half octaves (88 notes) COMP LETE TERIAL: Wooden case and RANGE MA soundboard iron frame and steel strings. SIZE Up to 9 ft 2.7m} long ORIGINS The grand piano developed from the harpischord in Europe in 1709 CLASSIFICATION: Chordophone: an instrument that produces sound by the vibration strings DID YOU KNOW? There are three main sizes of grand piano: baby grand boudoir grand and concert grand grane boudoi Pnnurer
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